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SHARE-BASED COMPENSATION (Tables)
3 Months Ended
Jan. 31, 2020
Share-based Payment Arrangement, Noncash Expense [Abstract]  
Allocated Share-based compensation expense disclosure
The impact of share-based compensation on our results was as follows:

Three Months Ended

January 31,
 
2020
 
2019
 
(in millions)
Cost of products and services
$
5

 
$
4

Research and development
8

 
6

Selling, general and administrative
26

 
17

Total share-based compensation expense
$
39

 
$
27

Share-based compensation arrangement by share-based payment award fair value assumptions and methodology schedule
The following assumptions were used to estimate the fair value of awards granted under the LTP Program that are based on total shareholder return ("TSR"):
 
Three Months Ended
 
January 31,
 
2020
 
2019
Volatility of Keysight shares
28
%
 
25
%
Volatility of index/peer group
13
%
 
12
%
Price-wise correlation with selected peers
61
%
 
57
%